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Environmental Science MCQs

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Practice free Environmental Science multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 937 questions — no login required.

Question 37easy

Pollutants that are introduced into the environment by human activity are called as

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Question 38medium

When clouds are viewed near the horizon, the individual cloud elements usually:

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Question 39hard

Which sea is referred to as an oceanic desert?

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Question 40hard

At night, low clouds:

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Question 41hard

Particulate pollutants are

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Question 42hard

Which of the following gases has role an important in maintaining atmospheric temperature?

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Question 43hard

Harmful trace metals in fly ash:

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Question 44medium

The term Ecosystem was coined by

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Question 45hard

_________ ecosystems are maintained artificially by man.

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